> On average I'd drain about 15% battery per hour. So 4 to 5 hours before you need to be thinking about charging, but I'm not sure you'd want to have the glasses on longer than that anyway.
I know there are splitters break a USB-C port out into a USB-PD port and a data transfer port, but can those (or a different accessory) also be used to provide PD to the phone for prolonged usage?
eta: Never mind, just saw that the XREAL Hub addresses this. I still wonder if there's a cheaper option, but most seem to be designed for PD out, not in.